Air-controlling means for carburetors



Jan. 20, 1931. w. A. HEIDE AIR CONTROLLING MEANS FOR CARBURETORS Filed April 25, 1928 SVSheetS-Sheet 1 Jan. 20, 1931. w. A. HEIDE I n AIR CONTROLLING MEANS FOR GARBURETORS Filed April 25, 1928 3 Sheets-Sheet 2 m www Y NW Jan. 2o, 1931. w. A. HEmE 1,789,652

AIR CONTROLLING MEANS FOR CARBURETORS Filed April 25, 1928 5 Sheets-Sheet 3 ggg. .9.

View WhichiwillV appeamsithe d" within bores 260i the block 15. These pins constantly thrust against thewear plate 17 y so as to insure a tight bearing between the :slide valve 2,2'and`the parts with which it cooperates. B providing the wear plate with the extenslon 2O it will be apparent that K movement of thewear plate 1-7Y'under the action 'of the spring pressed 4pins 24, will not result in leakage around the valve.

yThe slide valve 22 has an armA 27 extending tending.; set screws 31 attached thereto-for' engaging opposed facesf'of the ytongue' 28 lthere y to vhold said tongue'properly :c enteredin its guide.l vA. link 32 is pivotallyconnectedto the tongue 28` as'shown at133 and Vhas 'a' screw threaded i end 34, adjustably mounted'inla jblock This -blockis Vpiv-V k Votallyvv connected,v to a clamp 36 and adjustably vmountedon'an arm 37 whichis secured Vto 'and extended from the st e1n4. Clamp 36 "can beadjustedl longitudinally of the arm 37j andthe link 32 can,A of'course be adjustedV longitudinally relativeto the block 35. Thus 'fithelbutterliy valve 3 and the'valve 22 are capable of being soV adjusted as to positively.'v

*"'insurejja kpredetermined movement of the "valves when the buttery'valve'is actuated.

^ Asa modification of the' structure just de-" [scribedV the :device can be made as illustrated in. Figures 6 and 7 .f In this structureftheV Y block, 38hasan air inlet Vport 39jopening .o fthro'ughjthe bearing end of the block which,l

y asishown, an extension 4O.`V yA wearA lateA 41 Spacedirom the adjacent lend .Q :the

block38."` A'spacer 42 is interposedbetweenthe block'and abottom plate 43. f'lhisbotuim late is' astenedito the block-'as lshovvnr in igure7jand serves tosupportthe wearplate# 41 which,'in` turn, engages rtheslide valve 45.-

gas.

Thisslide valve hasY an opening 46 adapted p tolnove Vinto andi-,outof registerwithfthe vport 39 vand 'with an opening 47 extending ithrough the plates 41 and 43. A'tongue 48 is extended' from the slide valve 45 between guide fscrews'49 carried by a vyoke 44 which kis connected tothe,- plate 43.* Depending from tliejplate 43 are tubular holders 50 inV eachof which is vn'iounted ,ayieldingly supported thrust'pinV 51 which presses upwardly VVV.l'againstfthe bearingVv plate 41 and insures a` :of valve 5- f.under-allconditions.

.has a port-@through which air is supplied to' the port156whenthe valve 57 is in open V1`position`. Forthe purpose 'of/actuating the Y slide valve 57"'an arm63-is extended there tight fit between said plate and the valve and' between the valve 45 andthe block. A link 52 connects. the tongue 48 to the butterfly` valve and Vcorresponds with the link 32 heretofore described. By providing tubular holders 5,0 it becomes unnecessary to use a thick block with bores therein as shown in Figure 4.

In Figures 8, 9, and 10 a further niodilicatiolrotU the invention has been illustrated. In this structure 'the 'block 53 having the air it and in this extension is formed a port 56 which `opens into port l54 and backwardly `the valve 57,;` Springpressedapins '61 are 'mounted in'the block 58. Vandbearl against the wear late'59- soV las yto Vform a tight iit from' and mounted #innay guide v64 having'a yoke l similar to the yoke -29A heretofore 1 described.; `Thisarm V63 is connected 'by a link f Itwillbe understoodthat when the butterfly f valve `is set for starting themotor the airl 'controlling valvel 22 will be closed. I-Iow- Y' ever, when'the lbutterfly `valve is advanced i away from starting'position motion will be j transmitted therefrom to the,y slide valve 22 so as torpartly or entirely open the air inletv jport and insure a proper mixture oair-and ,66to a bellfcrank67which rotates with the butteriiy valve 68.',` `r What is claimed is-zlV .r p

v1. 'Y The eo'mbin ation with a tubular member for-the passag'e'oi"'gasandr a butterfly valve Y mountedfor' rotationtherein, of a Vmen'iber Y jhavingk a Yenturipassage.'opening into the ytubular 'memben an airr .inlet port opening @finto "said Venturi passagei at 'the outlet side of lthe butterfly'fvalve,- a-slide valve for controlling thelfl'owhoffresh air into saidpo'rt, Y ayieldingly -pressedzwea'r plate engaging the `slidefvalve;:and an operative'connection between thebutterily valve and the slide valve.

inletport 54'hasyanfextension 55 attached to llO ' 2. Thecombinationy with af'tubular4 memf ber.' constitutinga" gas outletand a butterfly f valve mounted rv:forrotation therein, ofan air inlet port opening into saidoutlet, la slide valve normally'closing said 'air-v inlet port, a

guide vblock lfor holding the' slide valve in proper positionfrelative to the port, a yieldingly pressed wear plate carried by said block and slidably engagedv by the valve, an'extensionon the wear plate V,for extending into the blockfor; sealing the connection between the block 4and wear plate, and anvoperative connection between-the butterfly valve and the kslide valve.

` 3.v The combination with atubular-member constituting avgas outlet'and a butterfly' valve mounted'forrotati'ontherein,'of an air inlet port opening into said outlet, la slide valve ynormallyclosing said air inlet p0rt,1guide v 'blockfoli holdingtheslde velivein'proper vposition"relative ,to the portyfayyieldinglyjQ pressed Wear'plate carried by vsaidblockfad` Y slidablyengaged by the.-va1vefa;n n ezitensior;V` j yo nthewear.plete forext'endng intoftheblock w for sealing the Connectoribetweenthe blek y' y n andwear plate,an'ope1fatve connection b'ef tween the butterfly Valve andthe 'sldeyalvm v said connection including atengue extendingy l from the slide Valve, a gudefor the t11,f g'l'1e',"'4 v V a' bell crank rotatable With the btteryp-y Valve,V and a. lhk `connecto'lfl,between tl'nsf'- Jj 'Venlo tongue and..bell-crank. 

